Visitors to Australias Great Barrier Reef will be forced to wear life vests if they are deemed to be at-risk swimmers, a new safety code says.
The rules are a response the deaths of 10 people - including at least four foreign tourists - on the reef in 2016.
Under the Queensland state code, tourism operators will be required to identify swimmers who are potentially vulnerable before they ente...

Australian scientists suspect a trio of viruses infecting algae from the Great Barrier Reef may aggravate coral bleaching.
Healthy corals rely on a symbiotic relationship with a photosynthetic algae known as Symbiodinium.
These single-celled organisms live in coral tissue and provide them with up to 90% of their nutrients.
But under stressful conditions, such as elevated water temperatures, thi...